Lock for couplings.



v LOOK FOR COUPLINGS.

APPLIOATION FILED M212, 1911.

n Patented Apr. 2,1912.

INVENTOR By A #0711 0,

UNITED STATES PATENT OFFICE.

EDWARD E. GOLD, OF NEW YORK, N. Y.

LocK FOR COUPLINGS.

Specification of Letters Patent.

Application filed February 2, 1911.

Serial No. 606,210.

. To all whom it may concern.

Be it known that I, EDWARD E. GOLD, a citizen of the United States,residing in the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in Looks forCouplers, of which the following is a specification.

My invention relates to looks for couplers such as are used for couplingair hose or steam hose upon railway trains, and has for its object toprovide a positive lock that shall be. simple and efficient inoperation,

, will be unlikely to be broken or to get out of order, will positivelyengage and lock couplers even though the respective parts of the couplerbe of diflerent types, will compensate for wear upon the parts and willat all times fold the ports tightly together notwithstanding such wear,andwhich will hold such couplers together though only one look be used.v

To this end my invention consists in a bolt capable of being rockedabout a longitudinal axis mounted upon one half part T of such coupler,having its end bent or offset so that it is capable of swinging over theoverlapping end of the other coupler,

and in combining therewith means for positively retaining such bolt 1nlooklng position.

.2, 1909. T parts or members A which are duplicates.

A desirable form of construction. is illustrated in the accompanyingdrawings, where1n,-

F igure 1 1s a side view of two parts of a coupler containing myinvention; Fig. 2

' plers which differ in details of construction,

I have illustrated the same in connection with a coupler such as isdescribed and shown in in Patent No. 913,950 of March lie coupler,illustrated has two Each of said coupling members has a direct port a atthe inner end of its body portion a Upon each member of the couplerthere is formed an extension a which projects forwardlyjfrom one side ofthe body por- I body portion of the mating coupler. Upon such extension(1 is formed a flange a which has a locking engagement with a projectiona upon the body portion, which flange and Patented Apr. 2, 1912.

tion into overlapping engagement with the projection together serve toforce the two coupler members A together as the said flange andprojection are forced into engagement with each other.

My invention relates to the locking means provided for holding-the twocoupler members in coupling position. Such means comprise a bolt whichis mounted upon one of the members so as to rock or turn, and which atits opposite ends has respectively a locking portion and a holdingportion. In the form illustrated the bolt has two eccentric portionswhich are turned in opposite ways. One eccentric is in the form of abent end, and the other eccentric lies in the head and is adapted toturn the locking portion to looking or unlocking position.

The locking member as illustrated consists in a bolt B which may have atapered or reduced end I) for ease in assembling.

Such tapered end permits the bolt when bent to be inserted through thebearing a in the lug a with which such couplers are usually provided.The bolt after insertion may be' held in position at one side by thecotter pin 6 which is passed through the bolt close to the lug (1, Thebolt is held from movement in the opposite direction by its enlargedhead.

The free end of the bolt is provided with an eccentric projection oroffset portion to permit the bolt to engage over the overlapping portionof the mating coupler. Such projection in the bolt illustrated isprovided by bending the end I) of the bolt to substantially right angleswith the body 11 of the bolt, which is of such length that when the boltis in'place in the lug a, the

, said end 6 will be adapted to be swung over the overlapping portion ofthe mating coupler and force the same to coupling position. Such eflectwill follow in the par ticular form of coupler illustrated by reason ofthe end 5 engaging a partof' such overlapping portionc as for instancethe flange a and forcing the same down upon 1 the lug a, thereby drawingthe two parts of the coupler together. I

The rocking or turning of the bolt B is accomplished as illustrated by aset-screw C which is threaded into a holeb in the enlarged head 6 of thebolt, and which is located eccentric to the longitudinal axis of thebolt. It is on the opposite side of such axis from the end Z). The lowerend of the set-screw C rests against the body a of the coupler when thebolt is turned to locking position and the said setscrew has beenseated. The body portion inside of the seat for the set-screw C- isformed into a curved face M, which when the set-screw is unseatedpermits the bolt to turn by reason of the weight of the head ofset-screw C overcoming the weight of the end 1), until the bolt is inthe position shown in Fig. 3.

The construction hereinabove illustrated and described, by reason of thefact that the projection upon the rocking bolt B engages the overlappingarm a free and clear of the adjacent body portion a permits the rock ingof the said bolt B to force the said arm down sufficiently to bring theports together, and this irrespective of any compression of the gasketsor wear upon the said gaskets or Wear upon the other parts. Thereby thesaid lock compensates for wear upon the said coupler, and,notwithstanding such Wear, at all times produces an efficient positivelock which holds the ports snugly together and prevents leakage.

Although I have described with much circumstantial detail the particularform of lock illustrated, I do not deem my invention necessarily limitedto such precise illustrated form, as modifications may be made thereinwithin the limits of the appended claims.

I claim as my invention 1. A look for couplers having overlappingmembers comprising a bolt, a bearing therefor in one of said memberswhich permits the bolt to turn, a projection upon one end of said boltadapted to be turned into locking engagement with the overlappingmember, and a set-screw engaging said bolt eccentrically to itslongitudinal axis and adapted to turn said bolt in said bearing tolocking position and to hold it in such position.

2. A look for couplers having overlapping members comprising a bolt, abearing therefor in one of said members which permits the bolt to turn,a projection upon one end of said bolt adapted to be turned into lockingengagement with the overlapping member, and locking means eccentricallymounted in said bolt and adapted when operated to turn said bolt tolocking position and positively lock the same in such position and whenreleased to automatically swing said bolt outof locking position.

3. A positive lock for couplers having overlapping members, comprising abolt adapted to be rocked into and out of look ing position, a bearingfor said bolt upon one member, one end of said bolt being oifset fromthe body thereof and adapted to engage and lock the overlapping memberwhen the bolt is rocked into locking position, and a setscrew threadedinto said bolt eccentrically to its longitudinal axis and adapted torock said bolt to locking position and to hold the same in saidposition.

4. A positive lock for couplers having overlapping members, comprising abolt adapted to be rocked into and out of looking position, a bearingfor said bolt upon one member, one end of said bolt being offset fromthe body thereof and adapted to engage and lock the overlapping memberwhen the bolt is rocked into locking position, and a set-screw threadedinto said bolt eccentrically to its longitudinal axis and adapted torock said bolt to locking position and to hold the same in saidposition, and when released to turn said bolt by gravity to unlockingposition. v

5. A positive lock for couplers having overlapping members comprising abolt, having its end reduced in diameter and ofiset from the body, and abearing for said bolt upon one member which permits the bolt to berocked into and out of locking position, a set-screw eccentricallythreaded into said head and adapted to rock the bolt to lockingposition, and to hold it in such position.

6. A positive lock for couplers having overlapping members comprising abolt, having its end reduced in diameter and offset from the body, and abearing for said bolt upon one member which permits the bolt to berocked into and out of locking position, a removable stop for holdingthe bolt in said bearing, and an enlarged head cooperating with suchstop to retainthe bolt in position, and means for positively holding thebolt in locking position.

7. A positive lock for couplers having overlapping members comprising abolt, having its end reduced in diameter and 01T- set from the body andadapted to be turned to engagement wit-h the overlapping member, and abearing for said bolt upon one member which permits the bolt to berocked into and out of locking position, a removable stop for holdingthe bolt in said bearing, an enlarged head cooperating with such stop toretain the bolt in posit-ion,and means for locking the bolt comprising aset-screw eccentrioally threaded into said head and adapted to turn thebolt to locking position and to lock the same.

8. A positive lock for couplers comprising a bolt mounted to rock in onemember of said coupler, and having oppositely extending projections onits ends, one of said projections having a set-screw adapted to turn thebolt to locking position and to positively hold the same in suchposition and the other projection adapted to engage a portion of theother member of the cou-' pl'er and lock the couplers together.

9. A positive lock forcouplers, comprising a bolt mounted to rock in onemember of said coupler and having oppositely extending projections onits ends, one of said projections having a set screw adapted to engageagainst the body of the coupler and to turn the bolt to locking positionand to positively hold the same in such position, and the otherprojection adapted to be brought into engagement with the other memberof the coupler by the turning of the bolt and to lock the couplerstogether.

10. In couplers having mating members each provided with a direct portand comprising a body portion having a side projec tion and an armadapted to overlap the body of the mating coupler and having a flangecooperating with'said side projection as the couplers are assembled todraw the ports together, a lock for positively holding said couplerstogether comprising a bolt mounted to rock in one member of said couplerand having oppositely extending projections, one of said boltprojections carrying a set screw adapted to engage one of saidoverlapping members and adapted to force the other bolt projection intoengagement with theother overlapping member, whereby said couplermembers are positively locked in coupled position and said set screw andthe other bolt projection each adapted to engage one ofsaid overlappingmembers free of contact with the other overlapping member, whereby. saidarm may be forced farther down as the parts wear and said lock willcompensate for such wear.

11. In couplers having mating members each provided with a direct portand comprising a body portion having a side projection and an armadapted to overlap the body of the mating coupler,v and having a flangecooperating with said side projection as the couplers are assembled todraw the ports together, a lock for positively holding said couplerstogether comprising a bolt mounted to rock in one member of said couplerand having oppositely extending projections one of said bolt projectionsadapted to extend over said arm and to engage the same free of the saidbody as the HENRY M. TURK, t FRED WHITE.

Copies of this patent may be obtained for five cents each, byaddressingthe Commissioner of Iatents.

Washington, D. G.

